Method, system and device for uploading and receiving file

The invention relates to a network communication technique, in particular to a method, a system and a device for uploading and receiving a file, which are used for solving the problem that the requirement on the configuration of a server is high when a bulk capacity file is uploaded through a Web page in the prior art. In the embodiment of the invention, the method for uploading the file comprises the following steps that: the server stores data blocks from a client to a specified position; and the server combines the data blocks in the specified position into the file in a mode that the data blocks are uploaded by the client after finishing receiving all the data blocks. The method in the embodiment of the invention can lower the requirement on the configuration of the server in the file uploading process, meet the file uploading requirement of a user and enhance the user experience and the file uploading reliability.